Probably time to just say to hell with it and keep a separate Firefox window open with all the Slack and IRC windows in their own tabs and use that Greasemonkey script by the NVDA guys floating around. I will, however, need to figure out how to get Firefox to allow me to log into the same service multiple times without saving the session cookie from the last login, thus keeping me logged in as the other account. Or buy a computer with sixteen GB of RAM and eight cores. This is something I’m going to do, but not just to handle Instantbird and its stupidity.
another top one is managing all of the tabs.
The bottleneck of my productivity on a desktop computer is surely managing all the windows.